Panasonic Lumix DC-GX800 vs. Panasonic Lumix DMC-GF1

Comparison

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Panasonic Lumix DC-GX800

Panasonic Lumix DMC-GF1

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Megapixels

16.00

12.10

Max. image resolution

4592 x 3448

4000 x 3000

Sensor

Sensor type

CMOS

Sensor size

Four Thirds (17.3 x 13 mm)

Sensor resolution

4612 x 3468

4011 x 3016

Diagonal

21.64 mm

Sensor size comparison

Sensor size is generally a good indicator of the quality of the camera. Sensors can vary greatly in size. As a general rule, the bigger the sensor, the better the image quality.

Bigger sensors are more effective because they have more surface area to capture light. An important factor when comparing digital cameras is also camera generation. Generally, newer sensors will outperform the older.

Learn more about sensor sizes »

Actual sensor size

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	vs
1	:	1
(ratio)

Panasonic Lumix DC-GX800		Panasonic Lumix DMC-GF1

Surface area:

224.90 mm²

Difference: 0 mm² (0%)

Lumix DC-GX800 and GF1 sensors are the same size.

Note: You are comparing sensors of very different generations. There is a gap of 8 years between Panasonic Lumix DC-GX800 (2017) and Panasonic GF1 (2009). Eight years is a lot of time in terms of technology, meaning newer sensors are overall much more efficient than the older ones.

Pixel pitch

3.75 µm

4.31 µm

Pixel pitch tells you the distance from the center of one pixel (photosite) to the center of the next. It tells you how close the pixels are to each other.

The bigger the pixel pitch, the further apart they are and the bigger each pixel is. Bigger pixels tend to have better signal to noise ratio and greater dynamic range.

Difference: 0.56 µm (15%)

Pixel pitch of GF1 is approx. 15% higher than pixel pitch of Lumix DC-GX800.

Pixel area

14.06 µm²

18.58 µm²

Pixel or photosite area affects how much light per pixel can be gathered. The larger it is the more light can be collected by a single pixel.

Larger pixels have the potential to collect more photons, resulting in greater dynamic range, while smaller pixels provide higher resolutions (more detail) for a given sensor size.

Relative pixel sizes:

Pixel area difference: 4.52 µm² (32%)

A pixel on Panasonic GF1 sensor is approx. 32% bigger than a pixel on Panasonic Lumix DC-GX800.

Pixel density

7.11 MP/cm²

5.38 MP/cm²

Pixel density tells you how many million pixels fit or would fit in one square cm of the sensor.

Higher pixel density means smaller pixels and lower pixel density means larger pixels.

Difference: 1.73 µm (32%)

Panasonic Lumix DC-GX800 has approx. 32% higher pixel density than Panasonic GF1.

To learn about the accuracy of these numbers, click here.

Specs

Panasonic Lumix DC-GX800

Panasonic GF1

Crop factor

Total megapixels

16.84

13.10

Effective megapixels

16.00

12.10

Optical zoom

Digital zoom

Yes

ISO sensitivity

Auto, 200-25600 (extends to 100)

Auto

RAW

Manual focus

Normal focus range

Macro focus range

Focal length (35mm equiv.)

Aperture priority

Yes

Max. aperture

Max. aperture (35mm equiv.)

n/a

Metering

Multi, Center-weighted, Spot

Centre weighted, Intelligent Multiple, Spot

Exposure compensation

±5 EV (in 1/3 EV steps)

±3 EV (in 1/3 EV steps)

Shutter priority

Yes

Min. shutter speed

60 sec

Bulb+60 sec

Max. shutter speed

1/16000 sec

1/4000 sec

Built-in flash

External flash

Viewfinder

None

White balance presets

Screen size

Screen resolution

1,040,000 dots

460,000 dots

Video capture

Max. video resolution

3840x2160 (30p/24p)

Storage types

microSD/SDHC/SDXC

SDHC, Secure Digital

USB

USB 2.0 (480 Mbit/sec)

HDMI

Wireless

GPS

Battery

Rechargeable Lithium-ion battery pack

Lithium-Ion rechargeable battery

Weight

269 g

385 g

Dimensions

106.5 x 64.6 x 33.3 mm

119 x 71 x 36.3 mm

Year

2017

2009

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Diagonal

Diagonal is calculated by the use of Pythagorean theorem:

Diagonal = √

w² + h²

where w = sensor width and h = sensor height

Panasonic Lumix DC-GX800 diagonal

w = 17.30 mm
h = 13.00 mm

Diagonal = √

17.30² + 13.00²

= 21.64 mm

Panasonic GF1 diagonal

w = 17.30 mm
h = 13.00 mm

Diagonal = √

17.30² + 13.00²

= 21.64 mm

Surface area

Surface area is calculated by multiplying the width and the height of a sensor.

Lumix DC-GX800 sensor area

Width = 17.30 mm
Height = 13.00 mm

Surface area = 17.30 × 13.00 = 224.90 mm²

GF1 sensor area

Width = 17.30 mm
Height = 13.00 mm

Surface area = 17.30 × 13.00 = 224.90 mm²

Pixel pitch

Pixel pitch is the distance from the center of one pixel to the center of the next measured in micrometers (µm). It can be calculated with the following formula:

Pixel pitch =	sensor width in mm	× 1000
	sensor resolution width in pixels

Lumix DC-GX800 pixel pitch

Sensor width = 17.30 mm
Sensor resolution width = 4612 pixels

Pixel pitch =	17.30	× 1000	= 3.75 µm
	4612

GF1 pixel pitch

Sensor width = 17.30 mm
Sensor resolution width = 4011 pixels

Pixel pitch =	17.30	× 1000	= 4.31 µm
	4011

Pixel area

The area of one pixel can be calculated by simply squaring the pixel pitch:

Pixel area = pixel pitch²

You could also divide sensor surface area with effective megapixels:

Pixel area =	sensor surface area in mm²
	effective megapixels

Lumix DC-GX800 pixel area

Pixel pitch = 3.75 µm

Pixel area = 3.75² = 14.06 µm²

GF1 pixel area

Pixel pitch = 4.31 µm

Pixel area = 4.31² = 18.58 µm²

Pixel density

Pixel density can be calculated with the following formula:

Pixel density = (	sensor resolution width in pixels	)² / 1000000
	sensor width in cm

One could also use this formula:

Pixel density =	effective megapixels × 1000000	/ 10000
	sensor surface area in mm²

Lumix DC-GX800 pixel density

Sensor resolution width = 4612 pixels
Sensor width = 1.73 cm

Pixel density = (4612 / 1.73)² / 1000000 = 7.11 MP/cm²

GF1 pixel density

Sensor resolution width = 4011 pixels
Sensor width = 1.73 cm

Pixel density = (4011 / 1.73)² / 1000000 = 5.38 MP/cm²

Sensor resolution

Sensor resolution is calculated from sensor size and effective megapixels. It's slightly higher than maximum (not interpolated) image resolution which is usually stated on camera specifications. Sensor resolution is used in pixel pitch, pixel area, and pixel density formula. For sake of simplicity, we're going to calculate it in 3 stages.

1. First we need to find the ratio between horizontal and vertical length by dividing the former with the latter (aspect ratio). It's usually 1.33 (4:3) or 1.5 (3:2), but not always.

2. With the ratio (r) known we can calculate the X from the formula below, where X is a vertical number of pixels:

(X × r) × X = effective megapixels × 1000000 →

X = √	effective megapixels × 1000000
	r

3. To get sensor resolution we then multiply X with the corresponding ratio:

Resolution horizontal: X × r
Resolution vertical: X

Lumix DC-GX800 sensor resolution

Sensor width = 17.30 mm
Sensor height = 13.00 mm
Effective megapixels = 16.00

r = 17.30/13.00 = 1.33

X = √	16.00 × 1000000	= 3468
	1.33

Resolution horizontal: X × r = 3468 × 1.33 = 4612
Resolution vertical: X = 3468

Sensor resolution = 4612 x 3468

GF1 sensor resolution

Sensor width = 17.30 mm
Sensor height = 13.00 mm
Effective megapixels = 12.10

r = 17.30/13.00 = 1.33

X = √	12.10 × 1000000	= 3016
	1.33

Resolution horizontal: X × r = 3016 × 1.33 = 4011
Resolution vertical: X = 3016

Sensor resolution = 4011 x 3016

Crop factor

Crop factor or focal length multiplier is calculated by dividing the diagonal of 35 mm film (43.27 mm) with the diagonal of the sensor.

Crop factor =	43.27 mm
	sensor diagonal in mm

Lumix DC-GX800 crop factor

Sensor diagonal in mm = 21.64 mm

Crop factor =	43.27	= 2
	21.64

GF1 crop factor

Sensor diagonal in mm = 21.64 mm

Crop factor =	43.27	= 2
	21.64

35 mm equivalent aperture

Equivalent aperture (in 135 film terms) is calculated by multiplying lens aperture with crop factor (a.k.a. focal length multiplier).

Lumix DC-GX800 equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Panasonic Lumix DC-GX800, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Panasonic Lumix DC-GX800 is 2

GF1 equivalent aperture

Aperture is a lens characteristic, so it's calculated only for fixed lens cameras. If you want to know the equivalent aperture for Panasonic GF1, take the aperture of the lens you're using and multiply it with crop factor.

Crop factor for Panasonic GF1 is 2

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